Most mob books suck in my opinion. Almost none of them are as detailed as I'd like them to be. A lot of authors think that a 100 to 200 page book will suffice, when it needs at bare minimum to be 300, if not 400 or 500 pages. For example, if I wrote a book on the Lucchese Family right now, best believe it's going to start from its very very beginnings, in painful details as much as possible, all the way to the latest piece of news of the Family, with every little bit of detail that I could possibly muster along the way. Maybe that's why I like books like The 6th Family or The Outfit by Gus Russo so much, I feel like they come pretty close to the quality of Mafia book I'm looking for.